NAICS 621320: Offices of Optometrists
This industry comprises establishments of health practitioners having the degree of O.D. (Doctor of Optometry) primarily engaged in the independent practice of optometry.  These practitioners examine, diagnose, treat, and manage diseases and disorders of the visual system, the eye, and associated structures as well as diagnose related systemic conditions.  Offices of optometrists prescribe and/or provide eyeglasses, contact lenses, low vision aids, and vision therapy.  They operate private or group practices in their own offices (e.g., centers, clinics) or in the facilities of others, such as hospitals or HMO medical centers, and may also provide the same services as opticians, such as selling and fitting prescription eyeglasses and contact lenses.

ExioML sector: Health and social work services (85)
Region: US | Year: 2022
Sector value added: 494535.123529 M EUR | Employment: 25054.2597813 thousand persons
Sector GHG emissions: 19792284842.0 kg CO2 eq | Energy carrier net total: 1182924.78393 TJ | Carbon intensity: 0.04002200025907637

Company: National Vision Inc
National Vision Holdings IncNational Vision Holdings IncNational Vision Holdings Inc (NVHI) is an operator of optical chain stores that retails prescription eyewear and sunglasses.https://www.globaldata.com › national-vision-holdings-incNational Vision Holdings Inc. Overview - GlobalData (NVHI) is an operator of optical chain stores that retails prescription eyewear and sunglasses. The company offers eyeglass frames, contact lenses, spectacle lenses and eyewear-related products.